Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7569993 | Gas discharge tube with discharge path limiting means | Koji Matsushita, Masaki Ito | 2009-08-04 |
| 7557509 | Gas discharge tube light source apparatus and liquid chromatograph | Masaki Ito, Koji Matsushita | 2009-07-07 |
| 7288880 | High-luminance gas discharge tube with diaphragm elements within discharge path | — | 2007-10-30 |
| 7288893 | Gas discharge tube | Masaki Ito, Koji Matsushita | 2007-10-30 |
| 7271542 | Gas discharge tube | Masaki Ito, Koji Matsushita | 2007-09-18 |
| 7226280 | Roots vacuum pump | Yasuna Yokoi | 2007-06-05 |
| 6956326 | Gas discharge tube having insulator between aperture members | Koji Kawai | 2005-10-18 |
| 6873107 | Gas discharge tube having multiple stem pins | Koji Kawai | 2005-03-29 |
| 6870317 | Gas discharge tube | Koji Kawai, Tsuyoshi Minamizawa | 2005-03-22 |
| 6863555 | Power-Cord Connecting Set | — | 2005-03-08 |
| 6741036 | Gas discharge tube | Tomoyuki Ikedo, Kouzou Adachi, Ryotaro Matui | 2004-05-25 |
| 6586866 | Gas discharge tube having precise electrode arrangement | Tomoyuki Ikedo, Kouzou Adachi, Ryotaro Matui | 2003-07-01 |
| 6573655 | Gas discharge tube | Tomoyuki Ikedo, Kouzou Adachi, Ryotaro Matui | 2003-06-03 |
| 6559576 | Gas discharge tube having sealed envelope with metallic portion and light projection glass window | Tomoyuki Ikedo, Kouzou Adachi, Ryotaro Matui | 2003-05-06 |
| 6531821 | Gas discharge tube | Tomoyuki Ikedo, Kouzou Adachi, Ryotaro Matui | 2003-03-11 |
| 6380663 | Gas discharge tube having a side tube with glass coating | Tomoyuki Ikedo, Kouzou Adachi, Ryotaro Matui | 2002-04-30 |
| 6155461 | Frozen dessert dispenser with inclinable dispensing cylinder | Michiharu Ishihara, Tsutomu Iwata, Shinji Notsu, Takeshi Horie, Hideki Matsudaira | 2000-12-05 |
| 5847872 | Circumferentially isotropic phase plate, method of making the same, method of forming bundle of rays using the same, and polarization measuring apparatus and method using the same | — | 1998-12-08 |
| 5698945 | Deuterium gas discharge tube | Tomoyuki Ikedo, Ryotaro Matui | 1997-12-16 |
| 5684363 | Deuterium gas discharge tube | Tomoyuki Ikedo, Ryotaro Matui | 1997-11-04 |
| 5646487 | Lighting device for gas discharge tube with insulated discharge shielding member | Tomoyuki Ikedo, Ryotaro Matui | 1997-07-08 |
| 5633563 | Gas discharge tube with discharge shielding member | Tomoyuki Ikedo, Ryotaro Matui | 1997-05-27 |
| 5619101 | Gas discharge tube | Tomoyuki Ikedo, Ryotaro Matui | 1997-04-08 |
| 5587625 | Gas discharge tube | Tomoyuki Ikedo, Ryotaro Matui | 1996-12-24 |
| 5552669 | Deuterium gas discharge tube | Tomoyuki Ikedo, Ryotaro Matui | 1996-09-03 |